Canon has released a new firmware version that fixes an obscure audio bug found while setting a manual audio recording level. Unless you're a hardcore SLR video user, this would probably never affect you, but you may want to update just to be on the safe side…
In the Version 2.0.4 firmware, the following phenomena that occurred with the Version 2.0.3 firmware (which was to enhance the movie functions) have been corrected.
- There was a phenomenon in which the manual recording settings made in C1/C2/C3 were changed and sound could not be recorded if manual sound recording was used in the C1/C2/C3 settings and the camera was subsequently turned off (or if Auto Power Off was activated). This does not occur in modes other than C1/C2/C3.
Download link: http://web.canon.jp/imaging/eosd/firm-e/eos5dmk2/firmware.html
